Royo, C., R. Torres-Perez, N. Mauri, N. Diestro, J.A. Homemade wine makes a wonderful gift, particularly if it tastes surprisingly good! Clary (eds.). The major origin of seedless grapes is associated with a missense mutation in the MADS-Box gene VviAGL11. What are Thompson Seedless grapes used for? Seedless grapes were originally a natural mutation that prevented the young seeds from maturing and developing a hard coat. Mix a bit of aged compost into the hole before planting. Malcolm Media Press, Clovis, CA. There is a lot written on the internet about how to check when grapes are ready, all of them say something different! Don't worry if it is a bit under or over. Any wine can turn to vinegar if oxygen gets inside the bottle and reacts with the alcohol. Wine grapes are more delicate and smaller. Seedless grapes are popular for eating, then, so how about in winemaking? In: V.E. Productivity and fruit composition of dry-on-vine raisin grapes pruned to 15- or 20-node canes on an overhead trellis. All rights reserved. I love grapes and love to eat seedless grapes out of hand, right off the stem. The wine from these grapes is normally very sweet and mild. Lorraine also enjoys hiking and exploring nature. Can I grow grapes from store bought grapes? Raisins made from this variety of grape are usually sweeter than those made from purple or black grapes. Christensen, L.P. 2000b. The opening winery offer of a minimum of $250 per ton for this year's green Thompson seedless grapes for crushing represents the highest price ever paid for the multi-use grape that has for decades been the foundation of the San Joaquin Valley grape industry. If they taste bitter they aren't ready yet. The simplest sign of this is that the bubbling has stopped. It's unlike any other wasp or hornet that I have ever seen. As explained here, it has no serious insect pest or disease problems. Prune the new growth coming from the spur's remaining lower shoot down to two buds, creating a new two-bud spur which will produce the new fruiting canes in the following year. Its leaves are also edible and used as a wrap around fillings, in types of dolma known as sarma. Cabezas, C. Marchal, T. Lacombe, J. Ibanez, M. Tornel, J. Carreno, J.M. Read more: How do seeds know which way to grow? Thompson Seedless berries typically ripen between late August and early September in the San Joaquin Valley, and fruit drying (on trays) generally takes 2-4 weeks, depending on drying conditions. Pick a sunny southern location with loamy, fertile soil and very good drainage. Want to save up to 30% on your monthly bills? Wine from Thomson Seedless grapes is normally very sweet and mild. Raisin grape varieties, p. 67. Stir, put lid on. The SG should be 1000 or below. This is why immigrants have been smuggling in grape vines from Europe pretty much since the Vikings landed. For the most part, these grapes belong to the species vitis vinifera. Copyright 2023 Wine Spectator. 2018. The medium-sized fruits have a sweet and delicious flavor, with no bitter aftertaste. Here was my chance to satisfy my curiosity and get a good deal. Grapes and raisins are known to be highly toxic to dogs, though research has yet to pinpoint exactly which substance in the fruit causes this reaction. Red flame variety has high sugar content and is often used in wine. Water has an SG of 1.000; the measurements are relative to this. Boil both ends of your stirrer then stir your mixture. Long story short, we trellised them and the first year they did great. I also pull it but that only removes the leaves. Trellis and vineyard design considerations for tray-drying have been described in the Raisin Production Manual (Christensen, 2000b). This is a grape plant that has been properly pruned. mwfidelibus@ucanr.edu, https://grapevarieties.info/wp-content/uploads/2021/12/Figure-2-Thompson-Seedless-cluster-scaled.jpg, Copyright Grape Varieties in the USA. Thank you! Fidelibus. It may not display this or other websites correctly. I'm Dr. Vinifera, but you can call me Vinny. When seedless grapes are grown, they produce tiny . 5. Thompson Seedless Grape $17.95 Vitis Vinifera 'Thompson Seedless' is a consistently heavy cropper, light yellow seedless berries with a soft berry skin and firm juicy pulp. Dig the hole. So, 40 grape clusters X 100 grapes per cluster = 4,000 grapes to make 10 bottles, or 400 grapes to make one bottle. Wine from Thomson Seedless grapes is normally very sweet and mild. Precise identification of insects from photos is difficult. Thompson Seedless is a white seedless grape of ancient origin and suitable for a variety of uses, including table, raisin, wine, concentrate, and canning. Plant the grapes in early spring and space the vines about six feet apart. Whilst this is more or less accurate, not all grapes are actually suitable for wine making straight from the vine . Even if it didn't taste good, his/her own wine is the better wine that someone has ever drinked. The best Spanish wines of 2017 for the AEPEV, Wine Spectators advice on making wine from a seedless grape vine, The best Spanish wines of 2017 according to Luis Gutirrez (from Robert Parker). Likewise, the wasp/hornet seems to be ignoring the bees. In: L.P. Christensen (ed.). Grow Thompson's Seedless Grapes. Gardeners who want a versatile grape that is easy to grow should consider a Thompson seedless grape. Our advice is that though it is possible, winemakers and consumers should probably just stick to wines made from such well-established, seeded grape varieties as those mentioned above. They're also bred to be pretty sturdy, so they can survive the trip from the vineyard to the store to your home for eating. The White Thompsons Seedless grape vine tend to ripen from August through September. It is sweet seedless grapes that constitute roughly 55% of India's production. One of the most common uses for the Thompson seedless grape is in making raisins. Can you make wine with grapes from the grocery store? Trust me on this large grapes means less skin. Use the back of a wooden spoon to help the grapes break apart 2. Whilst this is more or less accurate, not all grapes are actually suitable for wine making straight from the vine, not all have sufficient levels of sugar or acidity and, depending when you pick the grapes, you may or not have any natural yeast present to undertake the fermentation. A thicker skin and seed structure make it ideal for making wine from wine grapes. There are many, many more grape varieties that are used in wine. Christensen, L.P. 2000a. It is possible to make a wine from them and some companies do use them to supplement other grapes, but an all-thompson wine will not have much flavor. Northern California is home to a diverse range of seedless grape varieties. You can do this by taste if you don't have a hydrometer; check it is dry and not too sweet. I could go into the geometry, but I've been sipping some of my wine tonight and trying to commit mathematics right now could get really ugly. Taste Thomcord flavor is very similar to Concord, but its not as intense. This fruit has no seeds and tastes rather sweet. To ease your mind, OSU IPM center has put together an Asian giant hornet identification and comparison sheet. Share it with us! This product cannot be shipped to WA. This is why immigrants have been smuggling in grape vines from Europe pretty much since the Vikings landed. This helps to ensure even humidity, and allows you to catch any moisture issues before mold begins to form. Bhokri variety of grapes are seeded and harvest during the period of November-December and June-July. Table grapes are crisp and refreshing, but they wouldnt make great wine because they just arent ripe enough, and they dont have the skin-to-seed-to-pulp ratio that gives wine its flavor and structure. The bottom half of the cluster is normally about half the width of its top portion. $ 22.95. Your email address will not be published. Gallo wound up turning down most of th Grapes from the produce section of the grocery store are meant to be eaten fresh, and you shouldnt expect them to make top notch wines from them. The grapes are thought to have originated in Turkey, South America, Iran, or Greece. There are various online calculators you can use (Google 'wine alcohol calculator'), I calculated the alcohol content of my wine to be 9.8. The density at the end was 0.990. Petrucci and C.D. Crush and press them to extract the juice. Styrax: This, too, has no OSU diagnostic material available. 11 months ago, Hello! Grapes dried in a dehydrator will have a lighter color, especially if treated with sulfur dioxide. This green grapes dominate India's grape landscape. Thompson Seedless Grape (table) Torrontes Grape (wine) Fry Muscadine Grape (table) Chenin Blanc Grape (wine) Marquis Grape (table) Rousanne Grape (wine) Trebbiano Toscano Grape (wine) Sauvignon Blanc Grape (wine) The "right" wine is a matter of taste but the quality of the wine is all about the grape you're choosing. The bees seem unperturbed by this interloper. It also means enough sugar for about 12% alcohol. I decided to leave mine to stand so the CO2 left left slowly of it's own volition. Seedless grapes lack this characteristic and as such would not make great wines. Use a sterilised jug to pour the mixture through a sterilised fruit net into a washed and sterilised bucket, according to the previous method. Preparing the bottles is almost as much work as preparing the grapes, particularly if you remove the labels. I find that as long as the grapes are burst they impart their colour and flavour to the wine without having to be fully juiced. Petrucci and C.D. The skins and pips contain tannin which contributes to making structured wines capable of long ageing. Bhokri. Written by MasterClass. Standard trellising, p. 82-86. I got a real buy years ago from a fruit market at 10 cents per pound because they had begun to mold and wouldn't be store grade. It may take some time for the existing seed bank to be depleted. Known for . Cotinus: We have no diagnostic information on this species in the Pacific Northwest, because it is found most commonly in the South, especially the Southeast. For this one you put the cork inside it, put the handle in and then push the handle down, pushing the cork into the bottle. Place in a jar a little larger than necessary, and shake the jar once a day to loosen the grapes. , from the Peneds region, which will offer a lot of structure while still being accessible and delicious. While their exact origins are not certain, they are believed to have been brought to Europe and the United States from Turkey. Wine Tannin 1 Packet of Wine Yeast: Pasteur Champagne 10 Campden Tablets (5 prior to fermentation and 5 at bottling time) Directions 1. Some will peel, other are better scraped off with a knife. 2-for-1 Special: Give The Gift of Wine Spectator! I just have a few questions.- What sort of grapes are you using/grow at your home?- At step 8 when you add the airlock, I noticed there was a red cap that you've put on the top. Scout the lawn regularly for the characteristic purple foliage and remove or spot-spray young seedling plants prior to bloom (they have small yellow flowers). You want the starting starting specific gravity (SG) between 1.070 and 1.100 so the grapes need to be somewhere near this. Washington County. Boil the airlock for a couple of minutes, getting some of the boiling water to run through the lock. Plus, it looks pretty, and everyone likes it, unless they don't like grapes. In China, the production area in wine grapes is about 8%, and that in table grapes is about 17%, of the world's total production areas (FAOSTAT data, . That is why plants most susceptible to it are often planted as understory (shade) plants, rather than full sun. It is a hybrid of Thompson Seedless, Cardinal, and several other Vitis vinifera cultivars. I've made wine from Thompson Seedless table grapes. It is also usually a little darker than most other white wines. These grapes are not normally very large, and are usually fairly uniform in size. Has a sweet, great grape flavor with a unique hint of spiciness & ripens early season. You can use plain tubing but I invested a few pounds in a brewer's tube which has a filter on one end to help leave the sediment behind and a bulb on the other to start the wine flowing. Previously I have used demijohns but they are hard to clean so I thought I would try using another bucket this time and it worked really well. Use a potato masher to crush the grapes, and continue cooking for 2-3 minutes. It is harvested twice a year. I hope you find my answers educational, empowering and even amusing. We use cookies to ensure that we give you the best experience on our website. Position the bucket so it is higher than the bottles. winemaking grape in the world. Thompson seedless grape is the modern name given to this crop in honor of William Thompson, the first man to cultivate them in the U.S. Today, this variety of grape is mainly grown in California, in the western United States. Top with candied pecans or walnuts. Though it would be possible to make a wine with seedless grapes, the result would not be very good. Friends I have gifted the wine to have told me it tastes excellent. Wine grapes have seeds and thicker skins, and they tend to be sweeter because the sugars will be turned into alcohol during fermentation. California growers soon realized that Thompson Seedless was a superior raisin grape, but it did not supersede Muscat of Alexandria until 1922, partly because prohibition had eliminated wine as a potential alternative market for Muscat of Alexandria (Quaschnick, 2002). It is a common weed in nursery production in pots, but it can also be problematic in flower beds and as you are seeing, even the lawn. And for that matter, feel free to use Thomcords even when grapes arent expressly called for. What is the benefit of keeping wine on the dregs. Chardonnay is easily the most popular. Petrucci, V.E. Simply too many sulfur sprays are needed. They don't require any preparation or anything. These constraints, in turn, limit raisin yield in tray dried vineyards; the industry average is about 2 tons/acre. To girdle a cane, scrape off a 1/8- to 1/4-inch-wide ring of bark near the base of the fruiting cane early in the season, just after the flower parts have fallen off the young grape cluster.. three yearsMaking wine is a long, slow process. Also, some of these unidentified red and black grapes might be American or hybrid grapes, which may have a foxiness or other undesirable flavors to them. The purple-red berries are medium and size, sweet and crunchy, with a semi-thick skin. However, despite the advertising carried out by the wineries, there are still many unknowns about what this Read more. A large number of grape varieties are available in California. When do White Thompson's Seedless grapes ripen? Its leaves are also edible and used as a wrap around fillings, in types of dolma known as sarma. To get a clean finish it is worth sorting the grapes, removing the mouldy ones and washing them before crushing them and putting them in the bucket. You leave the grapes whole and mix with softened cream cheese, brown sugar and a little sour cream. This can lead to bitter wine. Easily grown in deep, loamy, humus-rich, well-drained soil, but quite adaptable. Unrooted Vine Cuttings Pre-Dipped in Clone-X ; All cuttings come with 100% Satisfaction Guarantee and detailed Grow Guide Guaranteed to root or replacement will be shipped without question The answer is through a process called propagation. Which means that, pound for pound, they have much less skin than wine grapes. It has the same consistency as other grape jellies, however, and spreads easily as well. When you are ready to bottle your wine boil or otherwise sterilise the lids for the bottles which have them. We also have a dribbler sprinkler head that runs at the base of the grape vine for five minutes at 7 a.m. and 3 p.m. I love it, it feels like magic! It's hard work but is also a labour of love. raisins are even used to make some wines. Popular variety. Watering and Fertilizing: Water the vines regularly and deeply throughout the growing season. This isn't essential but minimises the risk of spoilage. Ledbetter, C.A., and D.W. Ramming. Its leaves are also edible and used as a wrap around fillings, in types of dolma known as sarma. People bottle their wine at different times. One is for grapes. Could I even get away without using it? As a result of the Thompson variety popping up and being grown en masse, helping to make seedless grapes and raisins more affordable, today Muscat raisins are typically as hard to find in your local supermarket as rotary phones. Here is a page from the OSU Diagnostic manual. The edible nature of wine grapes makes them suitable for eating, but they are not meant to be eaten raw. We have clay soil and dont fertilize the grapes because the former owner told me that once grapes are established you dont fertilize them? Ask me your toughest wine questions, from the fine points of etiquette to the science of winemaking. This important seedless grape has gained a great favor in U.S. grocery markets and has been acclaimed to be the most popular seedless white grapevine that is grown in the United States. In California, most Thompson Seedless grapes are grown for raisins, dried on trays placed on the vineyard floor, or in dehydrators; the grapes of this variety ripen too late to dry on vine (DOV). The taproot in a well-fertilized and watered lawn will be fairly long and is probably best removed if you use a small digging tool suitable for dandelion and similar weed removal. I used the wonderful Hedgerow Wine Kit from Better Brew which contains everything you need, ready measured out (apart from the fruit and sugar!). (I end up washing my hands about 20 times a day when I follow this process.). 2020. Are you a wine lover? These grapes, Thomson Seedless and other two, are large compared to most wine grapes. To peel grapes for a specific recipe or high-end aesthetic, start at the stem end and separate the skin from the pulp using a knife.. It increases the acidity as it is dissolved as carbonic acid in water. I also like grapes in chicken salad. At least one ovule in each berry is fertilized and embryo development takes place, but the seed coat fails to lignify, the endosperm degenerates, and overall seed development is prematurely aborted (Royo et al., 2018). Marion County. Concord grapes are one of only three fruits native to North America (the other two are cranberries and wild . Shoots tend to be long and straight, with medium to long internodes. Ive had great fun following your instructions and now have 25 bottles of Foine Woine to sample in a few months. 1.2 kg (about 3 pounds) white grapes, seedless 400 g (2 cups ) granulated sugar 1 organic lemon, juice 15 g (1 tablespoon) pectin DIRECTIONS 1. Festa Juice fresh grape juice kits contain all the essentials to make extraordinary white Thompson Seedless wine. The cultivar is very sensitive to powdery mildew. A vigorous deciduous vine with bold-textured, deep green foliage. Table grapes are crisp and refreshing, but they wouldnt make great wine because they just arent ripe enough, and they dont have the skin-to-seed-to-pulp ratio that gives wine its flavor and structure. It has way more flavor than most grocery store grapes. June 16, 2006. What kind of wine does Thompson Seedless grapes make? Pectic Enzyme 3 tsp. We are lucky enough to have a beautiful grape vine which gifts us with kilos of grapes every year. This will sterilise them. University of California Agricultural and Natural Resources, Oakland. Thompson Seedless (Sultana) grapes are also used to make wine, primarily as a neutral and relatively inexpensive filler for inexpensive jug wines. What are the effects it may differ if made into wine as compared to the usual ones? Preparation time; 9 hours. You can bottle your wine soon after this if you wish or leave to mature in the bucket or demijohn. If not, add 1g pectolase. It easily leaves the solution into the air when stirred or shaken. Thompson Seedless is a white seedless grape of ancient origin and suitable for a variety of uses, including table, raisin, wine, concentrate, and canning. Can you make wine from Thompson Seedless grapes? Is it necessary? This grape is a dual-purpose grape. The plump, juicy Thomcord was developed by the Agricultural Research Service 's grape breeders in California. Ms informacin Aceptar. Sweet Carnival Grapes The White Thompson's Seedless grape vine tend to ripen from August through September. It is also the most versatile of grape varieties. I also added 5 campden tablets dissolved in some of the boiling water; this can help kill any germs that are left on the grapes. Vitis vinifera grape vines produce grapes that are used for making wine, for eating and for drying to produce raisins. Whats yours? It will only produce small round berries under natural growing conditions; a plant growth hormone (gibberellic acid) is needed to. Figure 1. Still, Ive always been curious about what sort of wine they would make. Thompson Grape Wine (Makes 5 Gallons) Ingredients 80 lbs. Can you make wine from grocery store grapes? A Thompson seedless grape is a variety that is pale green to yellow in color. The grapes makeup and seed tend to make full-bodied wines that are high in tannin. So, its much easier to grow a more resistant cultivar like those recommended in the publication I link to above. 1) Vineyard style-The classic system of two wires strung between posts. When it comes to making wine, the grape seeds are important and can contribute structure and tannin. Required fields are marked *. Make up a mix of water and Campen tablets as previously mentioned. Yeast Nutrient tsp. of sugar 5 tsp. A: This weed is commonly known as Creeping Red Sorrel or Oxalis and the species name is Oxalis corniculata. Check none of them are damaged. So how can a seedless grape reproduce naturally? American sultana grapes are almost invariably Thompson Seedless, a name that refers to William Thompson, a viticulturist who was an early grower in California and is sometimes credited with introducing the variety. Having said all this, you can learn how to make your own wine using grapes you buy from the grocery store. Grown for its medium-size clusters of . Thompson Seedless raisins set the international standard for seedless raisins (Petrucci, 2002). @Pippinwhite -- Ever had frosted grape salad? Thompson seedless grapes are a European grape variety also known as Sultana or Sultania. Thompson Seedless is a vigorous variety and usually head-trained and cane-pruned, due to its low basal bud fertility (Cathline et al., 2020). Growing grapes fruit tree, a vine plant, in our backyard. Could I alternatively just use something similar to cover my airlock with?- At step 11 and onwards after you have strained the fruit, do you ever reseal the fermenter again? Mine tasted too acidic to start with so I left it to stand so the CO2 could leave.You can see the wine has cleared and there is a layer of sediment in the bottom. Fidelibus, M.W., L.P. Christensen, D.G. Pruning can be done at any time during the growing season, but it is best to prune in the spring and early summer, when the fruits are in their best condition. People have are use to eating Concord grapes are typically disappointed. How do you make wine from table grapes? Prune the previous year's two-bud spurs in half, removing the top half of the spur with the new growth coming from it. Prune annually to control size. Thank you for the great Instructable, Question A grape grower may cultivate a seedless grape vine in order to meet this consumer need when it comes to edible table grapes. Thompson Seedless is a white seedless grape of ancient origin and suitable for a variety of uses, including table, raisin, wine, concentrate, and canning. Moudly grapes, stems, spiders and all. We are familiar with many of the most common grape varieties, such as Cabernet Sauvignon, Tempranillo, Sauvignon Blanc and Chardonnay. By Email, Subscribe to Comments Training Vines Probably the best thing you can do for your Thompson Seedless is to cut it back each year except for the first season, when you can let it grow against the stake. on your favorite social media. Her friends and family are the lucky beneficiaries of her culinary skills! What is malolactic fermentation, and why do winemakers use it? This is my first post on the wine side of things, I do beer not wine. Plant in early spring or after your area's last frost date, as young vines are . There are many, many more grape varieties that are used in wine. Everyone's favorite and the world's leading raisin variety; the Thompson Seedless grape is a medium sized greenish-white to golden, seedless table and wine grape. Marquis grapes are. Hello there! Thomcord grapes are firm and have a high sugar content with a slight astringency, offering a sweet, plummy, intense grape jelly-like flavor with hints of red wine and perfume. Our leaves are still having trouble. Make 25 bottles of excellent Thompson Seedless wine from fresh grape juice in only 4 WEEKS. Even if it is new I would wash and rinse it well in case it has factory or transit residue on it. T.S represents the seedless grape 'Thompson Seedless'. If you see moisture anywhere, put back into your dehydrator and continue to dry. Easy Arugula Salad with Grapes. A prolific grower, it was used in California jug wine blends after World War II. Seed traces are small. Clean and wash the grapes. How do you grow wine grapes in your backyard? In California raisin vineyards, growers typically leave 4 to 8 canes of 12 to 15 nodes each (Christensen, 2000a). Fry Muscadine Fry Muscadine Fry Muscadine, developed in the University of Georgia by R. Lane, has been in the markets since 1970. This year we followed the trimming/pruning/thinning regimen we saw outlined in YouTube videos, thinking that airflow might be the problem. Thompson Seedless is not recommended for here for two reasons. You can run them through grape presses to get all the pulp out of the way. The disadvantage of not pruning enough is that the plants produce a lot of foliage that becomes shade. Gently place in your vine, and throw on a few more inches of soil, tamp down this layer. No peeling or seeding. Once your must is ready, cover the bucket with a clean cloth and leave it alone for 7-10 days. Crush/dissolve the tablets in a gallon of water and put the mixture in the bucket. Seedless grapes lack this characteristic and as such would not make great wines. It has some very hoity-toity relatives within its species: Chardonnay, Sauvignon Blanc, Riesling, Pinot Noir, Cabernet, Merlot, Zinfandel, all Vitis Vinifera along with just about every grape youve ever heard of that makes a prestigious wine! You can leave the stirrer in the bucket but I tend to remove and resterilise. Thompson Seedless clusterPhoto by Matthew Fidelibus. How to Reproduce Seedless Grapes Fill the planting pot with potting soil and slowly run water over it until it is evenly moist. You can click any of the icons below to give this page a +1 or share it Martinez-Zapater, and P. Carbonell-Bejerano. For eating, consumers generally prefer the produce of a, . Anyway, I have a Thompson vine in my back yard and this year I got over 50lbs of grapes from it and I wasn't even taking any care of it! or is it left to stand unsealed for the rest of the process?- Is there any alternative to using isinglass? Thompson Seedless grape is one of the most well known seedless grapes around and has long been a very popular table grape as well as the most popular grape used for making raisins. In INVINICs blog we offer you the latest news, a lot of tips and tricks to become an expert in this drink. Clary (eds.). Home Fruits Can Wine Be Made From Seedless Grapes? Berries are medium (1.8 g), long oval-shaped, light green to light yellow. If you have a large vineyard, it may be necessary to cut down the vine to make room for the new growth. Like many grapes, the Flame Seedless is a hybrid, mixed with a few different grape varieties but manly the Thompson Seedless and the Cardinal. The fact that they contain no seeds is usually beneficial when juice-making, because no seeds have to be removed from the product during production. Available all year round. The common denominator among these plants is the southern exposure of the damage. You can tie small vines to a trellis or arbor, tying them as they grow to train them to grow up. Since then, Thompson Seedless has retained its status as the dominant raisin variety in California, accounting for most of the raisin-type grapes in California (Fidelibus, 2014). Using home-grown grapes gives homemade wine a much better environmental profile and carbon footprint than drinking wine which has been imported. A: Let me take these plants separately, although they are all exhibiting symptoms indicative of the same issues. Grapevines need something to grow up. 25 Items. If you continue to use this site we will assume that you are happy with it. What do Thompson Seedless grapes look like? In essence, many guides suggest that all you need to do is: Pick your grapes. That means a titratable acidity of 7-9 g/L (it will drop during fermentation to about 5-7.5 g/L) and a pH of 3.1-3.4. Thompson Seedless grapes have a type of seedlessness known as stenospermocarpic seed abortion (Royo et al., 2018). Spread the roots out in the hole, cover them with the removed soil, and tamp the soil down firmly. Here are some questions asked by other gardeners. Abstract: Objective To study the effect of clarifier on Thompson seedless wine and lay the foundation for producing high quality Thompson seedless wine.Methods The effects of three factors including chitosan addition amount, bentonite addition amount, gelatin addition amount and their interaction on transmittance were studied by single factor test and response surface method.