Instead of storing entropy, store the mnemonic created in the entropy. Steganography can be advantageous when storing the mnemonic. The random mnemonic generator on this site works by using a cryptographically protected random quantity generator. The in-built random generator can generally be trustworthy much more than your own personal intuition https://peakbookmarks.com/story19111427/the-5-second-trick-for-ledger-seed-phrase-bip39