Can I check my 30-inch suitcase for studying in Korea? Besides, can you check beef jerky or something?

I just arrived a few days ago, and I checked recently. It is best not to bring meat like beef jerky. If it is found out, it will be confiscated once and fined twice. The weight of the suitcase is 20kg regardless of its size, and sometimes it can exceed 1kg or 2kg ~ The weight of the suitcase on the plane can't be too big, but there can't be too much liquid. Have a nice trip ~ where are you going?