Miners collect Bitcoin Cash (BCH) transactions into distinct packets of data called blocks. Each block is cryptographically linked to the preceding block, forming a "blockchain."
The size of these blocks is currently limited to 32 megabytes. Since miners earn the fees from transactions included in their blocks, they have a direct incentive to mine larger blocks with more transactions. As more people use the Bitcoin Cash (BCH) network for Bitcoin Cash (BCH) transactions, the block size increases.
Today, the typical blocksize for Bitcoin Cash (BCH) is far below the blocksize limit of Bitcoin Cash (BCH). Bitcoin Cash (BCH) is engineered for this condition, ensuring low-fee on-chain transactions.