How to tell hand-drawn batik from printed

Guests ask us this more than any other question, usually after buying something at a market and starting to wonder. The good news is that you do not need an expert eye. You need thirty seconds and four checks.
1. Turn it over
This is the one that settles most cases. In real batik the dye soaks through the cloth, because the wax resisted on both faces and the dye reached the fibre from every side. The back looks almost as strong as the front.
A print sits on the surface. Turn it over and the back is pale, washed out, sometimes nearly white.
If the back is clearly weaker than the front, stop there. It is printed.
2. Look for the repeat
Print comes off a roller or a screen, so the pattern repeats on a fixed rectangle — usually somewhere between 30 and 90 cm. Find one distinctive element, then look for it again straight up or straight across. If it lands in exactly the same place every time, it is mechanical.
Batik cap also repeats, because the copper block repeats — but the joins wander slightly, because a person placed each stamp by hand.
3. Find the imperfection
On batik tulis, no two supposedly identical flowers are identical. Lines vary in thickness. A curve wobbles. Occasionally there is a small dot where the canting paused.
People often think these are flaws to check for and reject. They are the opposite: they are the evidence.
4. Smell it, if you can
Real batik has been boiled to remove the wax, and traditional wax carries beeswax and pine resin. Older or recently finished pieces often keep a faint, slightly sweet, slightly resinous smell. A print smells of nothing, or of chemical finish.
A note on honesty
None of this means printed cloth is bad. It is cheap, colourful, easy to wash, and perfectly good for a shirt you will wear to the beach. The problem is only ever the label and the price.
If a seller tells you a piece is tulis, a fair question is how long it took. Someone who made it, or knows who made it, will answer in weeks. Someone reselling a print will change the subject.