Hello. What variety of potatoes are you using? Genetics play a role as well. Some potatoes are naturally high in moisture. These potatoes are best suited for potato salad or home fries. Red skinned or new potatoes are fine examples. Other potatoes are naturally high in starch and are best suited for mashed or French fries. Russet potatoes are a fine example here. Some potatoes are dual purpose like the Yukon Gold. I personally don't think watering is the problem. If you are truly watering too much, then your potato plants would be suffering. Another thing, perhaps you are harvesting too early. But the first thing to confirm is your variety.
Hello. What variety of potatoes are you using? Genetics play a role as well. Some potatoes are naturally high in moisture. These potatoes are best suited for potato salad or home fries. Red skinned or new potatoes are fine examples. Other potatoes are naturally high in starch and are best suited for mashed or French fries. Russet potatoes are a fine example here. Some potatoes are dual purpose like the Yukon Gold. I personally don't think watering is the problem. If you are truly watering too much, then your potato plants would be suffering. Another thing, perhaps you are harvesting too early. But the first thing to confirm is your variety.