Defnyddid yr iau i wneud olew oedd yn llesol at grydcymalu.
An oil which was beneficial for rheumatism was made out of the liver.
PENWAIG
Cannwll frwyn
Toddid tagellau penwaig a defnyddio eu saim at wneud canwyllau brwyn. Roedd yn rhaid plicio'r croen gwyrdd i ffwrdd oddi ar y frwynen i gyd gan adael ond un llinell fain i gynnal y cnewllyn gwyn. Wedyn trochi y cnewllyn mewn saim er mwyn gwneud y gannwyll.
Gwrtaith
Defnyddid penwaig yn wrtaith ar y tir pe delid gormodedd ohonnynt.
Rush candles
The herring gills were heated and their fat was used in rush candlemaking. All the green skin was peeled off a rush leaving only one thin line to support the white pith. The pith was then dipped in the herring gill fat and the completed candle was placed in a suitable holder.
Fertiliser
Herring were used as fertiliser on the land when there was a glut of them.
Casglu ystifflogod wedi marw i fwydo i'r ieir er mwyn cryfhau plisgod eu wyau.
Ystifflog / Cuttlefish
Dead cuttlefish washed up on the tideline were collected and fed to hens to strengthen their egg shells.
Defnyddid gwymon yn wrtaith ar y tir.
Cais Gwilym y Rhos ar ei ran ei hyn ac eraill at Robert Evans, Methlem, am ganiatâd i groesi ei dir er mwyn mynd i draeth Porth Oer am lwyth o wymon a sached o dywod:
Mae Wil y crydd ac Ifan
Yn mofyn llwyth o wman,
A hwnnw’n wman heb ei ail
I bydru tail mewn toman,
A bagiad bach o dywad
Yn ôl yr hen arferiad
I Neli’i roi o hyd y llawr,
Rhag cwilydd mawr i’w welad.
Seaweed was used on the land as a fertiliser.
Gwilym y Rhos wrote a poem on behalf of himself and others to ask Robert Evans, Methlam, for permission to cross his land to go to Whistling Sands for a load of seaweed and a sackfull of sand.
TYWOD
Roedd yn hen arferiad i roi tywod ar loriau’r hen fythynod er mwyn i’r tywod wynnu ychydig ar wyneb y llawr pridd.
Sand was scattered over the floors of the old cottages to whiten the earth floors.