How many grape seeds does it take to make just 1 cup of grape seed oil?
There are 60 metric drops in a 5ml teaspoon. You'll find many variants on this ranging from 50 - 120, but 60 is a good bet. [From Wiki Answers]48 teaspoons in a cup.48 x 60 = 2880 drops in a cup.A grape seed is about the size of a drop, but the oil inside the seed is probably a lot less than a drop. I don't know for sure how much oil is in one grape seed, but if it is one tenth of a drop:2880 x 10 = 28,880 grape seeds to make one cup of grape seed oil.If there are 4 seeds in each grape that's 28,880/4 = 7200 grapes.If there are approximately 60 (25 cent-sized grapes ) in a pound then: 7200/60 = 1200 pounds of grapes.I have a strong feeling that the actual answer is much higher, between 50, 000 and 100,000 grape seeds to make one cup of oil extract. But this is a decent starting point.There are 5 grams in a teaspoon so one teaspoon equals 5000 milligrams.The recommended daily dose of grape seed extract is 150 to 300 (200) miligrams.So, if we go by drops of oil from grapes seeds, a daily dose (eating raw grapes with seeds) is:One teaspoon of grape seed oil is 28880/48 = 7220 seeds.How many milligrams per seed? 7220/5000 = 1.4 seeds.A daily dose is one 25th of a teaspoon therefore:25 x 1.4 = 35 and if there are 4 seeds per grape:35/4 = 8.75 grapes.Again, I think this number is two to three times higher, and of course there are different ways of extracting oil and or nutrients from grape seeds.Good luck with your nutrition needs. I hope this helps a little.