Djillhi are treated against rust thanks to the nitriding process. Nevertheless prolonged exposure to wet or saline oxygen can cause rust formation. That is why it is useful to take precautions. On the one hand never stores your instrument closed in his bag more than three days. Use the bag only for transportation. If temporarily you have no other place to store it, open at least the zipper to allow air to circulate. After each time you play, use a microfiber tab to erase grease stains. Once a month clean your instrument with alcohol and then put virgin coconut oil on the instrument (a small nut is enough). Avoid direct sun exposure. If that should happen, let it cool down before playing it. Imagine thousands of hammers were needed to make this instrument but they were cold worked (even if at least 4 tempering took place), if you hot work it, you will permanently detune it.