Silk is a brand of soy milk. There are also a number of specialty flavors including a coffee flavor (called soylatte).
Silk give the following information on caffeine content:
There are 55 mg of caffeine in one 8 oz. serving of Silk Coffee, 75 mg of caffeine in one 11 oz. serving of Silk Coffee, 3.6 mg of caffeine in one 8 oz. serving of Silk Chocolate Soymilk, 45 mg of caffeine in one 8 oz. serving of Silk Mocha and 0.3 mg in Silk Chai Soymilk.
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Ingredients in Silk Soylatte
Organic Soymilk (filtered water, organic soybeans), Organic Evaporated Cane Juice, Coffee, Calcium Carbonate, Natural Flavors, Sea Salt, Carrageenan, Zinc Gluconate, Vitamin A Palmitate, Riboflavin (B2), Vitamin D2, Vitamin B12.
Sugar content: 23 grams (per 8 ounces).Compare sugar levels of other drinks
Silk Soylatte contains 6.88 mgs of caffeine per fluid ounce (23.25mg/100 ml).