Table 1.

Successful residue removal rate in the ex vivo study (three attempts for each residue).

Endoscope	Soft Jelly	Hard Jelly	Grated Apple	1 mm2 Apple Pieces	3 mm2 Apple Pieces
Standard	100	0	100	0	0
Hand-made device	100	100	100	100	0

Values are the success rate (%).