Having tried half a dozen brands, I prefer Scitec Nutrition 100mg caffeine capsules. Pretty much the least bitter powder I tried, and the effects come on slow

Having tried half a dozen brands, I prefer Scitec Nutrition 100mg caffeine capsules. Pretty much the least bitter powder I tried, and the effects come on slow and steady. I'm really curious what they do differently when extracting caffeine. Most other brands have a comparably more dry powder that hits like a truck for me even at (supposedly) the same dosage.