I'm not sure if this is the whole list, but the food resources I do know that needs a Clay Scoop to forage are below.
Clay scoops gives and limit skills for Earthencraft, Quarry and Preparing.
I'm wondering if the Preparing skill is a mistake and should be Foraging, instead, on this tool.
Preparing skill is almost only used when standing near a machine, like a Cooking Table.
Other tools for the confectioner, like Harvesting Knife is Foraging. It seems to me that gathering resources would be Foraging skill only or at the very least Gathering.
What I'm getting at, is since Clay Scoop does Earthencraft, Quarrying and Preparing, am I actually getting a bonus while foraging these resources, when I tech it this way too? Traditionally, you would tech the tools with the same skills that the tool would limit. Since they use them.
If it's correct then fine, but if the tool is mislabled, thats fooling everyone to teching it with Preparing instead of Foraging. Can anyone confirm that foraging these resources actually uses the Preparing skill to Forage, and not the Foraging skill?
Lettuce
Carrots
Onions
Potatoes
Things like Wheat and corn use the Harvesting knife, which uses Foraging, that makes sense. But preparing skill does not. The preparing skill would be used, for example to turn Onions into Onion Powder (while using a cooking knife - Preparing and Cooking for this tool).
The only thing that really made me thing about this, was out of all the simple food resources to gather, these (foraged with Clay Scoop) seems to be pretty slow compared to others (that use Harvesting knife, that I have teched with Foraging). Even the bucket, has Foraging Skill. It does also have preparing, thats fine, because I believe the bucket is used sometimes near a cooking table (ie Beef Stock). As far as I know, Preparing skill is only used while standing by a machine, not gathering the raw resources...
If those veggies are truly set to use Preparing skill to gather, then seems like the Organic Reaping potion (+Foraging) is immune to those particular veggies. Also would be pointless to limit the Preparing skill, with this tool (T4 and below) as well.