Seven grams converts to exactly 1.4000000000000001 teaspoons. This number can be safely rounded to 1.4 teaspoons for ease of measuring when working in the kitchen.
Because 1.4 teaspoons is an uncommon measurement, the easiest way to measure it out is to first get 1.5 teaspoons and then subtract a small pinch from it. There are very few cooking recipes that cannot withstand a 0.1 teaspoon disparity from the instructions. Because of this, simply leaving the measurement at 1.5 teaspoons without removing a pinch should also yield satisfactory results. Baked items and sugars are the least forgiving items to this type of alteration, whereas soups and sauces are the most.