Sample collection

A method of saliva collection using a saliva collection apparatus comprising an open ended container to receive a sample from a user, the method comprising the steps of:

• arranging a projecting surface, comprising a roll-top edge, that extends generally outwardly and upwardly from the open end of the container to form an ergonomic lip engaging portion, against the body of the user at or below the lip of the user;
• wherein the projecting surface provides a funneling region of the lip engaging portion, arranged in use to funnel sample material downward, toward the open end of the container;
• wherein the funneling region is provided as a dip between wings that angle upward at a plurality of sides of the projecting surface;
• wherein the wings are provided on either side of a median line of the projecting surface;
• wherein the funneling region comprises a concave surface extending between the wings in a direction generally perpendicular to the median line;
• wherein the roll-top edge extends generally along the median line;
• wherein the roll-top edge comprises a convex surface which intersects with the concave surface of the funneling region at a saddle point;
• and
• wherein the saddle point is a local maximum of the convex surface and a local minimum of the concave surface;
• engaging the roll-top edge of the projecting surface against the user's lip;
• and
• collecting drool from the user while the roll-top edge is engaged against the user's lip, into the container, from the projecting surface.